Ctenanthe oppenheimiana

Ctenanthe oppenheimiana, the giant bamburanta or never never plant, is a species of flowering plant of family Marantaceae and is a native of Brazil. It is an evergreen perennial. This plant can grow to more than 1 m (3.3 ft) tall and broad, with long narrow leaves up to 40 cm (16 in) in length. These are dark green, heavily and irregularly marked with cream stripes, and wine-red on the undersides (hence 'Tricolor').*

*References: Wikipedia